Children (7 direct children, 7 direct and indirect children):
Siberian chiffchaff
Phylloscopus collybita tristis
Phylloscopus collybita abietinus
Phylloscopus collybita collybita
Phylloscopus collybita brevirostris
Phylloscopus collybita caucasicus
Phylloscopus collybita menzbieri
Phylloscopus collybita ibericus